objective 10.1 (1) Flashcards
what is the function of skin?
Main function is protection
Acts as body’s first line of defense
against disease
Prevents passage of harmful physical
and chemical agents
Prevents loss of water and
electrolytes
Can regenerate and repair itself
Along with the central nervous
system, there are four basic skin
sensations
Pain, Temperature, Touch, Pressure
Secretes sebum
Surface of skin is acidic
Protects from pathological
microorganisms
may be congenital or a manifestation of systemic disease
skin condition
is an important diagnostic criterion in certain diseases
skin color
can be used to diagnose allergies
skin tests
elevated, fluid-filled blister
vesicle
scab
crust
elevated area
papule
elevated, pus filled
pustule
raised red, irregular
wheal
black and blue-purple marks
ecchymosis
White pinpoint “pimples”
caused by the obstruction
of sebaceous glands
* Seen on nose & chin
* Disappear within a few
weeks
milia
a rash caused by exces body heat and moisture. There is retention of sweat in the sweat glands, which have become blocked or inflamed. Appears suddenly as tiny, pinhead-sized, reddened papules with occasional clear vesicles. The eruption is most often induced by hot, humid weather, but it may also be caused by high fever
miliaria
inflammation of the skin that involves the sebaceous glands (Fig. 30.5). Thick, yellow, oily, adherent, crustlike scales on the scalp and the forehead characterize this condition. The skin beneath the patches may be red (erythematous).
seborrheic dermatitis
a commonly seen condition that results from prolonged contact of the skin to a mixture of urine and feces. The urine increases the pH of the skin, resulting in increased sensitivity to fecal enzymes. If the skin remains moist inside the soiled diaper, the skin may become more likely to develop a Candida albicans infection. The rash of simple diaper dermatitis may appear as an erythema (redness); however, a beefy red rash in the diaper area may be indicative of a Candida (thrush) infection and necessitates prompt treatment
diaper dermatitis
a dermatitis that occurs in the folds of the skin (Fig. 30.4). The patches are red and moist and are usually located along the neck and in the inguinal and gluteal folds. Urine, feces, heat, and moisture aggravate this condition.
intertrigo
